132 
Psyche 
[March 
P. S. Corbet and T. Poulson. Dr. H. A. Miller kindly identified 
the moss for me. The National Science Foundation provided the 
following excellent students under the N.S.F. — U.R.P. Program : 
Philip Myers, Daniel Ewert, David DeHufif, Paul Deaton, and 
William Davis. The University of Illinois Graduate Research Board 
aided with two research grants, one of which funded the assistance of 
David Mucha. 
Literature Cited 
Billings, W. D. and Mooney, H. A. 
1968. The ecology of arctic and alpine plants. Biol. Rev., 43 : 390-401. 
Carpenter, W. L. 
1873. Report on the alpine insect-fauna of Colorado. Ann. Rep. U. S. 
geol. geogr. Survey of the Territories embracing Colorado, pp. 
539-542. 
Corbet, P. S. 
1957. The life history of the emperor dragonfly, Anax imperator 
Leach (Odonata: Aeschnidae). J. Animal Ecol., 26: 1-69. 
1963. A Biology of Dragonflies. Quadrangle Books, Chicago. 247 pp. 
Gloyd, L. K. 
1939. A synopsis of the Odonata of Alaska. Entom. News., 50: 11-16. 
Johnson, C. 
1968. Seasonal ecology of the dragonfly Oplonaeschna armata Hagen 
(Odonata: Aeschnidae). Amer. Midi. Nat., 80: 449-457. 
Kennedy, C. H. 
1915. Notes on the life history and ecology of the dragonflies (Odonata) 
of Washington and Oregon. Proc. U. S. Nat. Mus., 49: 1-345. 
1925. The distribution of certain insects of reversed behavior. Biol. 
Bull., 48: 390-401. 
Kormondy, E. J. 
1959. The systematics of T etragoneuria, based on ecological, life his- 
tory, and morphological evidence (Odonata: Corduliidae) . Misc. 
Publ., Mus. Zool., Univ. Mich., 107: 1-79. 
Lieftinck, M. A. 
1931. The life-history of Procordulia artemis Lieft. (Odon., Cordul.), 
with comparative notes on the biology of P. sumbawana (Forster). 
Int. Revue ges. Hydrob. Hydrogr., 28 : 399-435. 
Lutz, P. E. 
1961. Pattern of emergence in the dragonfly T etragoneuria cynosura. 
J. Elisha Mitchell Sci. Soc., 77: 114-115. 
1962. Studies on aspects of the ecology and physiology of T etragoneuria 
cynosura (Say) as related to seasonal regulation (Odonata: 
Cordulinae). Ph.D. Thesis, Univ. North Carolina, Chapel Hill 
(University Microfilms, 63-3502). 64 pp. 
Lutz, P. E. and McMahan, E. A. 
1973. Five-year patterns of emergence in T etragoneuria cynosura and 
Gomphus exilis (Odonata). Ann. Entom. Soc. Amer., 66: 1343- 
1348. 
